Side window wiper



May l, 1956 P. M. ALEF ,I SIDE WINDOW wIPER 2 Sheets-Sheet l Filed Dec. 17, 1952 BY m;

I ATTPNEYS May 1, 1956 P. M. ALEF 2,743,472

SIDE wINnow WIPER Filed neo. 17, 1952 2 sheets-sheet 2 wlw INVENTOR @gb 22 @ff/f C3295 BY Z @@I@ l ATTORNEYS -window-'and 1 United States Patent .SIDE WINDOW `WIPER` Philip'M.`1Alf,DetroitMich., assigner to General Motors Corporation, Detroit, Mich.,-a corporation of Deiaware ApplicationDecember 17, 1952, SerialNo. 326,533.

8 Claims. *(Cl. 'l5-250)' Thisinvention relates to window. wiping apparatus, and moreparticularly to apparatusl for wiping the side window .off ari/'automobile or other vehicle.

Because/automobile side'windows are .not fixed in 'position,:but arecapable. of being raised-and lowered, it is not.practical to use-anoscillating wiper of theftype which is conventionally. usedI to wipe -automobilewindshields It.-hasbeen.proposed-in the pastto useya stationary wiper blade.contacting the windowadjacent ythe sill and to utilize. the-upanddown movement of the window to provide wiping action, but suchia construction is disadvantageousbecause -the wiper blade contacts the glass when the iwindow is movingdown'frorn'its closed position and moisture and dirt are not removedfrom the window pane .undertvsuch conditions, butv are merelymoved along the the.window-surface and-aretracted position-wherein the thewblade.l is outofv engagement therewith. Actuating meanswcarried by` the .windowcause movement of the wiperzbetween wiping and retracted positions Vas a Vfunction .of sliding movement of the window. When the window -is'moving from fullyclosed .position-the .wiperis heldin retracted position; however, ,when Ythe window is lfullytclosedfis'fully open, or is moving .from fullyfopen position the wiper is held in wiping position in `Contact with the window glass..` The blade does" not engage .-the windojw pane ywhen the window vis moving .from fully closed position,;so that/dirt' andmoisture are not deposited on: the window pane-above the. wiper blade.'

Otherfeatures andI advantagessof the inventionwill be apparent fromithe following 'description andvfrom the drawings','in which:

Fig'.4 1 isa fragmentary verticalsection through'fan automobile side window and door, showing the improved side window wiping apparatus with the wiper blade in lwiping position;

Fig'. 2.is a .fragmentary section similarto Figi', l, but showing the wiper blade lin retracted position;

Fig. 3 .is a fragmentary perspective View of a portion of one .side of the. window; Fig.,4 is a. fragmentary..isometric-section showing v.the blade-in. wiping position;

Fig.f;5 is a .fragmentary side elevational View ofthe windoweand 'thewiper' actuating meansl carried by the Fig. 6 is a fragmentary outside.elevationalfviewshowl 2,743,472 kPatented May .1, 1956 2' l ing the apparatus -withnthe vouterdoor .panelof the automobile removed. i

Referringnowmore particularly to the drawings, an automobileY siderwindow 10 is vertically slidable'in .an automobile .door having an outerY door panel -11 with trim strips 12 and l3-extendingalongfitsupperedge, the panel 11 with the strips` .12 and 13 providing a sill portion I4for the reception of the window 10.y The window glassl 10 is mounted in..a peripheralchannel .15, as is conventional, and-.manualor Apower `operated ymeans (not shown) are provided for moving the -window between open and closed terminal positions. -An actuating member designated generally as .16, has .a channel shaped portion 'comprising legs .17 and 1S anda base 119,' which fity over and are secured `to the channel v15 so-thatthe actuating member 16 is mounted on land is` carriedby vthe window 10. At the free side of the leg portion 18 of the actuating member 16 a flange 20w-is bent-back upon-the leg 18, as shown best in .Fig:3. Thefflange 20 extends past'the base 19 ofthe actuating-member vandy isy formed with a vertically extending groove 12f1which y'forms a` shallow track, and with a sloty 22 parallel to groove 21 andA forming a deep track.V As. shown best .in Figi/5 the flange ZOIeXtends severaly inehesfbelowfthe bottom-edgey of the window 10. The tracks are separated throughout-inost-.of their length by a partition23 which lies-'in the plane vof the body of the 'flange 20,and adjacent-the upper edge of thellange 20 the partition23\terminates and the slot 22 is widened as shown at 24 in Figs. 4 and-5. The upper periphery of thefslotlzllfandvthe space 24 is defined by-a cam surface 25 .which extends in a curved line-from the inner edge ofthe upper end of the 'groove `21-to the outer edge of the' upper end of the slot 22; In Figs. 3 and 5 the upper edge oftheishallow groove 21 is designated as 26. Adjacentfthe loweredge of the flange 20 the slot 22'is widenedy at .27 andthe lower peripheryof the slot 22 and space 27 -is defined by a cam surface 23 which extends in a curved line as shownfin Figs. 5 ando; In Figs. 5 and 6 the lower.- edge of theshallowtgroove `21 `isf designated as 30. t n

An elongated wiperf blade 32 is mounted. in a metal holder 33 whichis pivotally mountedv at 34 on an ear 37 lprojecting/:fromsa` bracket 35. which is secured by screws-3610 al-stationary part ofthe automobile door. The' wiper assembly extends substantially entirely across the window andemayn-be pivotally mounted at its other end in a similar mannerI to provide for pivotal `movement of the wiper blade 32 between a wiping position as shown in `Figsfl and4, wherein the blade lengages the window glass-10,vand1a retracted hposit-ionas shown'in Fig. 2, wherein the blade 32 is pivoted out of Contact with the windowiglass 10.-

In order to provide for pivotal movement ofthe wiper blade 32rbetween-:wipin`gand retracted positions as a function'of sliding movement of the window 10, the blade holder 33V hasI adjacent its end a lug 38 which projects past-the pivotal mounting-.point 34 and whichis twisted assshown-at 39` in Figs.f1, 2 and 6. They support bracket 35 has'adjacent its lower end an-apertured ear 41 upon which a-.curved link 42'is pivotallymourited. At a point between its ends the link is provided with a hub 43 (see Fig. 6)y fromwhichwprojects a mounting studv44 which extendsithrough the aperture in the 'ear-4L A spring 4S supportedy on stud 44hasl one end anchored on the support bracket 35 andthe other end anchored in a notch 46 in the 7'link 42 in order to bias the link in a counterclockwise direction as the parts appear in Figs. l and l2. The upper end-of the=link42` hasa slotv48 which receivesV the end of thetwisted portion y39 of the wiperl holder lug, thus providing a movableconnection between the wiper and the link4-2. The 4lower'end-of the link 42'isada'pted to ride infone of thetracksll or 22,'Iaccording` topredetermined conditions of operation of the window, the hub 43 providing a loose mounting for the link by spacing the body portion of the link from the adjacent surface ofthe ear 4-1, and the stud 44 providing a mountingrwhereby the link is not only pivoted about the axis of the stud 44, but is bodily movable along the axis of said stud.

The operation of the apparatus is best seen from a consideration of Figs. l, 2 and 6. In Fig. l the window is in a condition of operation wherein it is moving from fully open position; in Fig. 2 the window is moving from fully closed position; and in Fig. 6 the window is moving from fully open position, and is only of the order of 1A inches of movement from fully closed position. During movement of the window from fully open position the link 42 rides in the deeptrack provided by slot 22, as shown in Figs. l and 6, and in Fig. 6 the link has just started to engage the cam surface 23, so that the remaining approximate 1/4 inch of movement will cause the cam surface 28 to move the link 42 bodily to the left as the parts appear in Fig. 6 so that said link is aligned with the shallow track provided by groove 21. When the window starts to move down from its fully closed position the link 42 rides in the shallow track provided by groove 21, as shown best in Fig. 2, and the link 42 pivots against the force of spring 45 in a clockwise direction from its position in Fig. 1, causing pivotal movement of the wiper blade assembly in a counterclockwise direction to move the wiper blade into its retracted position as shown in Fig. 2.

As the window approaches its fully open position the free end of the link 42 will enter the open space 24, permitting the spring 45 to pivot the link and wiper into wiping position, and the cam surface 25 will cause bodily movement of the link 42 to the right as the parts appear in Fig. 6, so that when the window reaches its full down position the link is aligned with the deep track formed by slot 22, and upon upward movement of the window from fully open position the link travels in the deep track and the spring 45 holds the wiper blade 32 in wiping engagement with the surface of the Window glass 10.

in the event that more positive means are desired for moving the link 42 bodily into alignment with the shallow track 21 when the window reaches its full up position, spring means may be provided biasing the link bodily to the left as the parts appear in Fig. 6 or the spring 45 may be arranged to provide such a bias.

While I have shown and described one embodiment of my invention, it is capable of many modifications. Changes, therefore, in the construction and arrangement may he made without departing from the spirit and scope of the invention as set forth in the appended claims.

l claim:

l. Apparatus of the character described, including: a slidable window; a wiper member mounted for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; cam guide means; and actuating means cornprising a follower engaging said cam guide means for moving Said wiper between wiping and retracted positions as a function of sliding movement of said window.

2. Apparatus of the character described, including: a vertically slidable window; sill means for receiving said window when it is lowered; a wiper member pivotally mounted on said sill for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; guide means mounted on said window, including a cam track; and actuating means comprising a follower mounted on said sill and engaging said cam track for pivoting said wiper between wiping and retracted positions as a function of sliding movement of said window.

3. Apparatus of the character described for wiping a slidable window, including: a wiper member pivotally mounted for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; an operating link having a portion movably connected with said wiper, said link being mounted for pivotal movement and for bodily movement along its pivotal axis; and actuating means carried by said window and having a first track receiving said link when the window is in one condition of operation to arrange said wiper in wiping position and a second track receiving said link when the window is in another condition of operation to arrange said wiper in retracted position, said tracks having cam portions adjacent opposite ends and said link being bodily movable by engagement with said cam portions between said first and second tracks upon movement of said window.

4. Apparatus of the character described, including: a slidable window movable between two terminal positions; a wiper member pivotally mounted for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; an operating link having a portion movably connected with said wiper, said link being mounted for movement about a pivotal axis and for bodily movement along its pivotal axis; actuatirig means carried by said window and having a rst track receiving said link when the window is in one condition of operation to arrange said wiper in wiping position and a second track receiving said link when the window is in another condition of operation to arrange said wiper in retracted position; and cam means on said actuating means for moving said link bodily between said rst and second tracks when the window has reached either of its terminal positions.

5. Apparatus of the character described for wiping a slidable window, including: a wiper member pivotally mounted for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; yieldable means biasing said wiper toward one of said positions; and actuating means carried by said window and having cam means operative when the window is in one condition of operation to permit the wiper to move into one position under the influence of said yieldable means and cam means operative when the window is in another condition of operation to hold said wiper in the other position against the force of said yieldable means.

6. Apparatus of the character described, including: a slidable window movable between two terminal positions; a wiper member pivotally mounted for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; spring means biasing said wiper toward wiping position; and actuating means carried by said window and having cam track means operative when the window is in one condi- -tion of operation to permit the wiper to move into wiping position under the inuence of said spring and cam track means operative when the window is in another condition of operation to hold said wiper in retracted position against the force of said spring.

7. Apparatus of the character described, including: a slidable window movable between open and closed terminal positions; a Wiper member pivotally mounted for movement between wiping position in engagement with the window surface and retracted position out of engagement therewith; an operating link having a portion movably connected with said wiper, said link being mounted for movement about a pivotal axis and for bodily movement along its pivotal axis; spring means biasing said 'viper toward wiping position; actuating means carried by said window and having a first track receiving said link when the window is in either terminal position or is moving from open terminal position to permit said wiper to move into wiping position under the infiuence of said spring and a second track receiving said link when the window is moving from closed terminal position to hold said wiper in retracted position against the force of said spring; and cam means adjacent the ends of said tracks on said actuating means for moving said link bodily into alignment with one of said tracks when the window has reached either of its terminal positions.

5 6 8. Apparatus of the character described for wiping a References Cited in the le of this patent movable window, includingz a wiper member mounted UNITED STATES PATENTS for movement between wiping positlon 1n engagement movement of sa1d link to move said wiper between wlp- 214,520 Great Britain APL 24, 1924 ing and retracted positions in accordance with predeter- 10 mined conditions of operation of said window. 

